Q. No.The largest carnivorous marsupial that got extinct in 20th century was:
1. Dodo
2. Quagga
3. Thylacine
4. Stellar’s sea cow
1. Dodo
2. Quagga
3. Thylacine
4. Stellar’s sea cow
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Year-to-year variation shown by areas with more species is ................... with respect to areas with less species.
| 1. | less | 2. | more |
| 3. | same | 4. | absent |
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Which of the following is not a reason that accounts for greater biodiversity of tropics?
1. availability of more solar energy
2. more niche specialization
3. more time for species diversification
4. large seasonal variations in environmental factors
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Although, India has only 2.4 % of world’s area, its share of global species diversity is about:
| 1. | 3% | 2. | 5% |
| 3. | 8% | 4. | 11% |
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Approximately, what number of species have been identified, named and studied?
| 1. | 1.0 million | 2. | 1.5 million |
| 3. | 1.7 million | 4. | 2.0 million |
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The greatest biodiversity on the earth is found in:
1. African grasslands
2. Amazonian rain forest in South America
3. Western Ghats in India
4. Nile delta in Egypt
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The relation between species richness and area for a wide variety of taxa on alogarithmic scale is a:
| 1. | rectangular hyperbola | 2. | straight line |
| 3. | sigmoid curve | 4. | circular circle |
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Biodiversity loss is now one of the world’s most pressing crisis. The primary reason for this is that:
1. we cannot do anything about it
2. we are not responsible for this loss
3. we still do not know its entire extent
4. it is only affecting the developing countries
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